NEW
Font size
WorksheetsHuman Biology Quiz
Total questions: 12
Worksheet time: 6mins
Which two core biological concepts are highlighted as foundational for understanding single-cell and spatial gene expression?
Transcriptional regulation and cellular heterogeneity
Chromatin remodeling and epigenetic inheritance
Cellular architecture and the Central Dogma
Signal transduction pathways and metabolic regulation
What is the definition of a cell ?
A membrane-bound organelle responsible for coordinating cellular activities
A self-assembling nucleoprotein complex capable of autonomous replication
The smallest structural and functional unit of an organism
A multicellular structure with specialized functions
The "Nucleus" of a cell is analogous to what in a factory?
The factory wall
"soup" inside
The main office/control center
The shipping department
Why is it stated that "diseases are often diseases of cells"?
Because only single-celled organisms get sick.
Because all diseases are contagious.
Because all living things are made of cells, and their malfunction leads to disease
Because pathogenesis is driven solely by anomalies in cell–cell adhesion, with all other cellular functions intact
What can single-cell RNA-seq determine in a heterogeneous tissue?
The proportional composition of different cell types within the tissue
The average total RNA concentration of the entire tissue
The thickness of the tissue section
The gene sequence content in each cell
What is the main characteristic that makes RNA (specifically mRNA) "dynamic" and valuable for single-cell analysis?
It is permanently stored in the nucleus, providing a historical record of transcription
It undergoes rapid synthesis and degradation, so its abundance mirrors real-time cellular activity
It carries covalent epigenetic marks that determine different gene expression patterns
It forms single-stranded helices that enhance transcript dynamic in the cytoplasm
Which molecule is described as "The Molecular Worker" and performs most of the work in cells, essential for structure, function, and regulation?
DNA
RNA
Protein
Glucose
What is the correct sequence of the Central Dogma of Molecular Biology?
Protein → RNA → DNA
RNA → Protein → DNA
DNA → RNA → Protein
DNA → Protein → RNA
What defines a cell's identity, function, and state, even though all cells in an individual generally have the same DNA?
The size of the nucleus
The number of chromosomes
The sets of gene expression
The cell's physical location
In Single-Cell Transcriptomics, what is the typical output data structure called?
A cell interaction matrix.
A max-like protein matrix
A cell-by-gene matrix.
A distance matrix
What is the main "problem" that Spatial Transcriptomics aims to solve, which single-cell RNA sequencing (scRNA-seq) loses?
The difficulty in isolating individual cells.
The inability to identify gene sequences.
The loss of the cells' original tissue position context
The lack of information about gene expression.
Which of the following is NOT listed as a way algorithms can help biologists?
Identify disease mechanisms.
Discover biomarkers.
Pinpoint drug targets.
Perform laboratory experiments manually.
